Metro

‘F—d’ NYPD commander files for retirement amid investigation

An NYPD commander under investigation in a sprawling corruption probe filed for early retirement Monday — the same day he was forced to answer questions from the Internal Affairs Bureau, The Post has learned.

Deputy Inspector James Grant’s departure from the force would be effective June 21, less than a month shy of his 20-year employment anniversary.

The move, if approved, will deny him full pension benefits, which would have amounted to 50 percent of his average salary for the past three years.

He earned around $180,000 last year.

Sources have said Grant is suspected of accepting gifts of free travel and diamonds from Brooklyn businessman Jeremy Reichberg in exchange for providing him official police escorts.

One of the trips Grant took was on a private plane where a prostitute dressed as a flight attendant had sex with passengers, sources have said.